Question-8. . A cylindrical metal specimen with a diameter of 16 mm and length of 88 mm is be subjected to a tensile stress of 80 MPa; at this stress the resulting deformation is elastic. (a) If the elongation is less than 0.058 mm, which of the metals in the table can be considered candidates? Why ? (b) If the maximum permissible diameter decrease is 0.0012 mm when the tensile stress of 68 M is applied, which of the metals satisfy the criterion in question (a) are the suitable candidat Why ? Metal Modulus of Elasticity / GPa Shear Modulus / GPa Poisson's Ratio Al 69 25 0.33 Cu 110 46 0.34 Ma 45 17 0 29
Question-8. . A cylindrical metal specimen with a diameter of 16 mm and length of 88 mm is be subjected to a tensile stress of 80 MPa; at this stress the resulting deformation is elastic. (a) If the elongation is less than 0.058 mm, which of the metals in the table can be considered candidates? Why ? (b) If the maximum permissible diameter decrease is 0.0012 mm when the tensile stress of 68 M is applied, which of the metals satisfy the criterion in question (a) are the suitable candidat Why ? Metal Modulus of Elasticity / GPa Shear Modulus / GPa Poisson's Ratio Al 69 25 0.33 Cu 110 46 0.34 Ma 45 17 0 29
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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Transcribed Image Text:Question-8. . A cylindrical metal specimen with a diameter of 16 mm and length of 88 mm is to
be subjected to a tensile stress of 80 MPa; at this stress the resulting deformation is elastic.
(a) If the elongation is less than 0.058 mm, which of the metals in the table can be considered as
candidates? Why ?
(b) If the maximum permissible diameter decrease is 0.0012 mm when the tensile stress of 68 MPa
is applied, which of the metals satisfy the criterion in question (a) are the suitable candidates?
Why ?
Metal
Shear Modulus / GPa
Modulus of Elasticity / GPa
69
Poisson's Ratio
Al
25
0.33
Cu
110
46
0.34
Mg
45
17
0.29
Ni
207
76
0.31
Ti
107
6.5
0.34
W
407
23.2
0.28
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